Switch



Nov. 9 1926.

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Filed April 17. 1925 E. e. APPLETON E! AL SWITCH Patented Nov. 9, 1926.

UNITED STATES ERNST G. APPLETON LUDWIG LABSEK, OF CHICAGO, ILLINOIS, ASSIGNOBS TO BOACH-APPLETON MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A COB- IOBATON OF ILLINOIS.

SWITCH.

. Application filed April 17, 1925. Serial No. 23,747.

The present invention relates to switches. More particularly the present invention relates to switches of the type which may be selectively biased to either open circuit or closed circuit position. Alternate operations of an operating member will move the "switching mechanism alternately between open circuit and closed circuit positions,'

and the parts are so arranged that the switching mechanism will remain in the position to which it has been moved until positively moved therefrom.

An object of the present invention is to provide a switch of the character above referred to which is simple in construction, inexpensive to manufacture and positive in its action. A

A furthen object is to providea switch. which will operate with a snap action bewhich involves a minimum of parts.

A further object is to rovide a switch made up of stampings whic may be cheaply formed and which may be readily assembled.

A further'object is to provide a small and inconspicuous switching mechanism which will combine efficiency with low cost.

Further objects will appear as the description proceeds.

Referring to the drawings Figure 1 is a plan view of one embodi' ment of the present invention;

Fi re 2 is a sectional view showing the interior of the construction shown in Fig ure 1, the section being taken alon the plane indicated by the arrows-2-2 0 Fig ure 3- Figure 3 is ;a view in side elevation of the structure shown in Figure 1;

Figure 4 is a sectional view taken along the planes indicated by the arrows 44 of Fi re2;

igure 5 illustrates certain important parts of the construction shown in the preceding figures, said parts being separated for purposes of clarity, the various parts of Fig;. ure 5 being represented by charactersiA, and C;

Figure 6 is an end view, on an enlarged piece of sheet metal.

.4 The upstruck scale, of the structure shown in part C oi understood, certain "figures of the drawing are of a size greater than certain preferred embodiments of the present invention. However, no limitation is intended as to dimensions of the switch embodying the present invention.

The numeral 1 indicates a cup-shaped member, which may be swedged from a Said cup-shaped member 1 is provided with the ears 2-2 disposed at the open end of said cup-shaped member, which ears may be readily bent over upon the closure 3, which closure is composed of insulating -material. The closure 3 is slotted for the reception of a pair of terminal members 4 and 5, which terminal members are provided with the binding-.screws 6.6. Said terminal members 4 and 5 have shoulder portions 7-7 abutting against the outer surface of the insulating closure 3, and the inner extremities of said terminal members 4 and 5 are indicatedas the portion 9 (the inner end 0 terminal 4), has holding engagement with the plate 10, which plate has the upstruck fingers 11- 11. a

pose of providing a rocking support or fuL crum for the movable contact member which is indicated as a whole by the rlun'leral 12. The rocking member 12 has-the two oppositely disposediside portions 13-13 provided with the slots l414, the up'struck fingers 11 11 of the stationary plate 10 fingers 11-11 serve the put-- being adapted to ride within said slots 14.14.' The under sides of said side portions 1313 are adapted torest 'upon shoulders 15'15 of the upstruck' fingers 11-11. Disposed intermediate of the two side portions :1313 is the trough 16 bounded atits two ends by the .walls 17-17.

The .lrocking member'12, which is of electrical conductin material, is adapted to v engage with the inner end of the portion 8 of terminal 5. When said rockingmember 12 is in engaging relationship with said portion 8 of the terminal 5, an electrical connection is, of course, provided between the terminals 4 and 5.

The means for rocking the member 12 the swinging operating member indicated as a whole by. the numeral 20. The operating member 20 is an elongated member having a ball-shaped portion 21 intermediate of its length, which ball-shaped portion has bearing engagement with the rivet member 19. The operating member 20is provided with an axial hole 22, which carries the pin 23 of insulating material. A spring is provided for urging the pin 23 outwardly. The operating member 20 is provided with the handle portion 25 projecting outwardly from the cup-shaped member 1, whereby the operating member 20 may be conveniently swung through its range of movement. The dimensions of the parts are so chosen that the insulating pin 23 will be forced into engagement with the rocking member 12 and will yieldingly hold said rocking member 12 in tilted position. It will be clear that when the operating member 20 is swung to a position wherein its axis coincides with the plane defined by the upstruck fingers 11-11 forming the pivotal mounting of the rocking member 12, said operating member 20 will be in a state of unstable equalibrium. Any slight movement to one side or the other of .said position willresult in the snap movement of the rocking member 12 to one or the other of its tilted positions corresponding to the movement of the operating member 20." The spring 24 housed within the operating member 20 will positively hold the rocking member in either ofits tilted positions, whereby said rocking member 12 willbe biased either in circuit closing or in circuit opening position.

A strap .member 26 may be provided, .which may be welded orotherwise secured .to the cup-shaped member 1. Said strap member-26 may have its extremities perforated,.as indicated by the numerals 27+27, for the reception of holding means, such as screws, whereby the switch may be readily attached to a conveniently positioned supporting member.

The present invention provides a construction which is simple, easy to assemble and consequently cheap to manufacture. It

involves a minimum of arts and is very un I likely to get out of or er.

hough .a preferred embodiment of the present invention has been described in' deminal members.

tail, it will be clear that many modifications will occur to those skilled in the art. It is sure providing mounting means for two ter- .minal members, a rockmg' member within said cup-shaped member loosely carried by one of said terminal members, and spring projected means carried by said operating member for performing the double function of holding'said rocking member upon said one terminal member and for selectively biasing said rocking member to open circuit or closed circuit relationship with the other of said terminal members.

2. A switch. comprising a cup-shaped member having an aperture, an operating member extending through said aperture and havingva bearing on the inner wall of said cup-shaped member, an insulating closure for said cup-shaped member, said closure providing mountingmeans for two terminal members, a rocking member within said cupshaped member loosely carried by one of said terminal members, and spring projected means carried by said operating member for performing the double function of holding said rocking member upon said o e terminal member and for selec tively iasing said rocking member to open circuit or closed circuit relationship with the other of said terminal members, said'cup-shaped member having ears adaptedto be bent over upon said insulating 0 parts together as a unit.

3. A switch comprising a plurality of osure member .to hold said sheet metal members, insulating members, a

spring, and an operating member, said spring being mounted in said 0 erating ing a rocking member, said spring projected 'sitioned to hold insulating member being said rocking member in p ace u on said fulcrum means and to selective y bias said rocking member intoopen cu'cuiting or closed circuiting relationship with said ter- 4. A switch including a'heusing ha aperture, an operating member .exten 'ng through said aperture, said operating mem her havi a ball-shaped portion having spring-pressed means carried by said.operbearing re ationship with said housing, a ating member for biasing said rocking mem- 10 closure for said housing, said closure prober. I

4 viding mounting means for a pair ofelec- Signed at Chicago, Illinois, this 13th day 5 trio terminal members, a rocking member of April, 1925.

- carried by one of said terminal members and adapted to have electrical contact with ERNST G. APPLETON.' the other of said terminal members, and LUDWIG LABSEN. 

